Archaeologists at work near Gull Lake, Saskatchewan
Archaeologists at work near Gull Lake, Saskatchewan
Excavation at work near Gull Lake, Saskatchewan.
Excavation at work near Gull Lake, Saskatchewan.
Mission Canyon, Little Rocky Mountains, Montana
Mission Canyon, Little Rocky Mountains, Montana
Early distillation apparatus
Early distillation apparatus
Frank Bryant at Ruby Gulch Mine, Little Rocky Mountains, Montana
Frank Bryant at Ruby Gulch Mine, Little Rocky Mountains, Montana
Lodgepole Canyon, Little Rocky Mountains
Lodgepole Canyon, Little Rocky Mountains
Dipslope to Mission Canyon limestone
Dipslope to Mission Canyon limestone
Lodgepole Canyon, Little Rocky Mountains, Montana
Lodgepole Canyon, Little Rocky Mountains, Montana
Mission Canyon, Little Rocky Mountains, Montana
Mission Canyon, Little Rocky Mountains, Montana
Basic intrusive related to Bearpaw Mountains, Montana
Basic intrusive related to Bearpaw Mountains, Montana
Open Glory hole in Porphyry, gold mine, Ruby Gulch
Open Glory hole in Porphyry, gold mine, Ruby Gulch
Entrance to Mission Canyon, Little Rocky Mountains
Entrance to Mission Canyon, Little Rocky Mountains
Mission Canyon, Little Rocky Mountains
Mission Canyon, Little Rocky Mountains
Lodgepole Canyon, Little Rocky Mountains
Lodgepole Canyon, Little Rocky Mountains
Bitumen jointed masonry of temple of Ur of the Chaldees
Bitumen jointed masonry of temple of Ur of the Chaldees
